首页|Anomalous Metallic State Driven by Magnetic Field at the LaAlO3/KTaO3(111)Interface

Anomalous Metallic State Driven by Magnetic Field at the LaAlO3/KTaO3(111)Interface

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The origin of the quantum superconductor to metal transition at zero temperature in two-dimensional super-conductors is still an open problem,which has caused intensely discussion.Here,we report the observation of a quantum superconductor-to-metal transition in LaAlO3/KTaO3(111)interface,driven by magnetic field.When a small magnetic field perpendicular to the film plane is applied,the residual saturated resistance is observed,indicating the emergence of an anomalous metallic state associated with a failed superconductor.The dependence of saturated resistance on magnetic field at low temperature indicates that the observed metal state is a Bose metal state.From our findings,magnetic field regulating LaAlO3/KTaO3(111)interface emerges as a platform to scrutinize the details of the anomalous metallic state in a controllable way.

Zi-Tao Zhang、Yu-Jie Qiao、Ting-Na Shao、Qiang Zhao、Xing-Yu Chen、Mei-Hui Chen、Fang-Hui Zhu、Rui-Fen Dou、Hai-Wen Liu、Chang-Min Xiong、Jia-Cai Nie

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Department of Physics,Beijing Normal University,Beijing 100875,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Basic Research Program of ChinaNational Basic Research Program of China

9206511011974048120743342014CB9209032013CB921701

2023

10.1088/0256-307X/40/3/037301

中国物理快报(英文版)
中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDCSCD北大核心EI
影响因子：0.515
ISSN：0256-307X
年,卷(期)：2023.40(3)
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